Integrated magneto-Optical Write/Read Head
    71.
    发明申请
    Integrated magneto-Optical Write/Read Head 审中-公开
    集成磁光写/读头

    公开(公告)号:US20080043578A1

    公开(公告)日:2008-02-21

    申请号:US10598876

    申请日:2005-03-08

    IPC分类号: G11B7/22

    摘要: A Method of Manufacturing an Integrated Magneto-Optical Element for use in a Digital Magneto-Optical Signal write/Read Head and an Integrated Magneto-Optical Element Manufactured According to the Method A method of manufacturing an integrated magneto-optical element for use in a digital magneto-optical signal read/write head, in which the manufacturing techniques of thin film coils are combined with lens-making techniques to realise a high performance, reliable and cost-effective lens-MFM coil combination for use in a slider having an air bearing surface for “flying” just above a surface of a storage medium (102) during operation. The method comprises two principal steps: Step I is to make an MFM coil (106) by means of a thin film technique, and Step 2 is to make an objective lens (114) on top of the transparent (e.g. glass) plate (109) in which the MFM coil (106) is located.

    摘要翻译: 一种制造用于数字磁光信号写/读头和集成磁光元件的集成磁光元件的制造方法根据该方法制造用于数字化的集成磁光元件的方法 磁光信号读/写头,其中薄膜线圈的制造技术与透镜制造技术相结合,以实现用于具有空气轴承的滑块的高性能,可靠和成本有效的透镜MFM线圈组合 在运行期间恰好在存储介质(102)的表面上方“飞行”的表面。 该方法包括两个主要步骤:步骤I是通过薄膜技术制造MFM线圈(106),步骤2是在透明(例如玻璃)板(109)的顶部上制成物镜(114) ),其中MFM线圈(106)位于其中。

    Electrowetting module
    72.
    发明授权
    Electrowetting module 有权
    电渗模块

    公开(公告)号:US07327524B2

    公开(公告)日:2008-02-05

    申请号:US10555261

    申请日:2004-05-03

    IPC分类号: G02B1/06 G02B3/12

    CPC分类号: G02B3/14 G02B26/005

    摘要: An electrowetting module (20) comprises a fluid chamber (8) which contains a first fluid (A) and a second fluid (B), which are separated by an interface (14), and means to (16,17) exert a force on at least one of the fluids to change the position and/or shape of the interface. By providing at least one of the fluids with a compound having at least one aromatic, non-fused, residue, the performance of the module can be enhanced. For example the optical power of an electrowetting lens (30) can be increased.

    摘要翻译: 电润湿模块(20)包括流体室(8),所述流体室包含由界面(14)分开的第一流体(A)和第二流体(B),以及装置(16,17)施加力 在至少一种流体中以改变界面的位置和/或形状。 通过提供具有至少一种芳族,非稠合残基的化合物的至少一种流体,可以提高模块的性能。 例如,可以增加电润湿透镜(30)的光焦度。

    Variable lens
    73.
    发明授权
    Variable lens 有权
    可变镜头

    公开(公告)号:US07301708B2

    公开(公告)日:2007-11-27

    申请号:US10556243

    申请日:2004-05-10

    IPC分类号: G02B1/06 G02B3/12

    摘要: A variable lens includes a chamber defined by at least one side wall and has an optical axis extending longitudinally through the chamber. The chamber contains a first fluid and a second fluid contact over a meniscus extending transverse the optical axis. The perimeter of the meniscus is constrained by the side walls. The fluids are substantially immiscible, and have different indices of refraction. At least one pump is arranged to controllably alter the position of the meniscus along the optical axis by altering the relative volume of each of the fluids contained within the chamber.

    摘要翻译: 可变透镜包括由至少一个侧壁限定并具有纵向延伸通过该腔室的光轴的腔室。 该腔室包含在横向于光轴延伸的弯液面上的第一流体和第二流体接触。 弯液面的周长受到侧壁约束。 流体基本上是不混溶的,并具有不同的折射率。 至少一个泵布置成通过改变容纳在腔室中的每个流体的相对体积来可控地改变弯液面沿着光轴的位置。

    Optical scanning device
    74.
    发明授权
    Optical scanning device 失效
    光学扫描装置

    公开(公告)号:US07170681B2

    公开(公告)日:2007-01-30

    申请号:US10501422

    申请日:2002-12-18

    IPC分类号: G02B27/44

    摘要: An optical scanning device (1) for scanning three information layer (2, 2′, 2″) with three respective radiation beams (4, 4′, 4″) having three respective wavelengths (λ1, λ2, λ3) and polarizations (p1, p2, p3). The three wavelengths differ from each other. At least one of the three polarizations differs from the others. The device comprises a diffractive part (24) including a pattern of pattern elements which have one stepped profile for forming three diffracted beams (15, 15′, 15″) from the three radiation beams, the part comprising birefringent material, sensitive to the three polarizations. The stepped profile is designed such that the heights (hj) of the steps of a pattern element introduce phase changes that equal at least two different multiples of 2π for one (λ1) of the three wavelengths and equal at least two different phase changes modulo 2π for one (λ2) of the two other wavelengths.

    摘要翻译: 一种光扫描装置(1),用于用具有三个相应波长(λ<1/2)的三个相应辐射束(4,4',4“)扫描三个信息层(2,2',2”) λ,λ2,λ3)和极化(p 1,p 2,p 3)。 三个波长彼此不同。 三个极化中的至少一个与其他极化不同。 该装置包括具有图形元件图案的衍射部分(24),该图形元件具有一个阶梯轮廓,用于从三个辐射束形成三个衍射光束(15,15',15“),该部分包括双折射材料 三极化。 阶梯轮廓被设计成使得图案元件的台阶的高度引入相位变化,相位变化等于两个不同倍数的2pi,一个(λ1 SUB / >),并且对于两个其它波长的一个(λ<2> 2 ),等于至少两个不同相位变化为2pi。

    Optical scanning device
    75.
    发明授权
    Optical scanning device 失效
    光学扫描装置

    公开(公告)号:US07130134B2

    公开(公告)日:2006-10-31

    申请号:US10498300

    申请日:2002-12-06

    IPC分类号: G02B13/18 G11B7/00

    摘要: The invention relates to an optical scanning device (1) for scanning an information layer (2) by means of a radiation beam (4). The device includes: a radiation source (6) for providing said radiation beam, a lens system (7) for transforming said radiation beam to a converging beam (16), and a wavefront modifier including a first element (301) and a second element (302) having each an aspheric surface and being mutually movable in a plane perpendicular to an optical axis (12) of said lens system for introducing a wavefront modification (W1) in said converging beam. According to the invention, the aspheric surfaces of said first and second elements are shaped so that a mutual rotational displacement of the elements about an axis of rotation (ZA) which is parallel to said optical axis (12) generates said wavefront modification (W1).

    摘要翻译: 本发明涉及一种用于通过辐射束(4)扫描信息层(2)的光学扫描装置(1)。 该装置包括:用于提供所述辐射束的辐射源(6),用于将所述辐射束变换成会聚束(16)的透镜系统(7),以及包括第一元件(301)和第二元件 (302),其具有每个非球面并且可以在垂直于所述透镜系统的光轴(12)的平面中相互移动,以在所述会聚光束中引入波前修正(W 1> 1)。 根据本发明,所述第一和第二元件的非球面形状被成形为使得元件围绕平行于所述光轴(12)的旋转轴线(Z SUB)的相互旋转位移 )产生所述波前修正(W 1> 1)。

    Optical scanning device
    77.
    发明授权
    Optical scanning device 失效
    光学扫描装置

    公开(公告)号:US07126900B2

    公开(公告)日:2006-10-24

    申请号:US10497343

    申请日:2002-12-05

    IPC分类号: G11B7/00

    摘要: An optical scanning device for scanning a dual-layer optical record carrier. The device includes a spherical aberration compensation optical subsystem having a switchable liquid crystal cell (10) for altering a wavefront deviation generated in a folding mirror (32) including a non-periodic phase structure (NPS) located behind a polarization-selective reflective layer.

    摘要翻译: 一种用于扫描双层光学记录载体的光学扫描装置。 该装置包括球面像差补偿光学子系统,其具有用于改变在包括位于偏振选择反射层之后的非周期相位结构(NPS)的折叠镜(32)中产生的波前偏差的可切换液晶单元(10)。

    Compensating for sherical aberration induced when reading from optical record carriers with transparent layers of different thickness

    公开(公告)号:US06928043B2

    公开(公告)日:2005-08-09

    申请号:US10008196

    申请日:2001-11-08

    IPC分类号: G02B5/18 G11B7/00 G11B7/135

    摘要: A device for scanning a first and second type of optical record carriers (2, 40) generators a first and a second radiation beam for scanning the first and second type of record carriers, respectively. The information layers (4, 42) of the first and second type of record carriers is scanned through transparent layers (3, 41) of different thickness. The first radiation beam (17) has a first wavelength and a first numerical aperture NA−1. The second radiation beam (46) has a different, second wavelength and an effective second numerical aperture NA2 smaller NA1. The rays of the second radiation beam having an NA smaller than NA2 form a central sub-beam (48), the rays having a larger NA form an outer sub-beam (49). The device includes a non-periodic phase structure that does not affect the first radiation beam. The phase structure introduces an amount of spherical aberration in the central sub-beam (48). The phase structure is transparent for the central and outer sub-beam (48, 49). The introduced spherical aberration compensates the difference in spherical aberration caused by the difference in thickness of the transparent layer (3, 41) of the first and second type of record carriers (2, 40). To reduce the amount of stray light falling on the detection system (25) from rays in the outer sub-beam (49), the phase structure introduces an amount of defocus in the second radiation beam (17). The defocus displaces the focus of the central sub-beam with respect to the focus of the outer sub-beam, causing the intensity distribution of the central and outer sub-beam split in two separate distributions. If the position and size of the detection system are properly chosen, the detection system will capture mainly rays from the central sub-beam and not from the outer sub-beam. Hence, the displacement of the foci allows spatial filtering in the plane of the detection system (25) of the desired and undesired rays of the second radiation beam.